Ionia Weather Forecast

    • 45
    • 66

    Increasing Clouds

    • 37
    • 65

    Partly Sunny

    • 32
    • 51

    Partly Sunny

    • 49
    • 64

    Partly Sunny

    • 49
    • 69

    Slight Chance Rain Showers

    • 47
    • 64

    Partly Sunny

Today 25 Oct Ontario

Sunny. Patchy fog this morning. Warm with Highs Ranging from the lower 60s on the Hilltops to the upper 60s across the lower Elevations. Light southwest Winds.

Tonight 25 Oct Ontario

Partly cloudy with some patchy fog developing. Lows in the mid 40s. Light southwest Winds.

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Ionia Temperature Statistics

October Temperature

Rochester, Greater Rochester International Airport (15.5 miles)

  • Lowest 21 October, 2026

    32 °F

  • Average October

    54.9 °F

  • Highest 13 October, 2026

    82.7 °F

Climate (2021–2026)

Rochester, Greater Rochester International Airport (15.5 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    50.7 °F

  • Average High 2021–2026

    59.5 °F
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